import java.util.Scanner; 
class FeetToMeter { 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入英尺："); 
        if (scanner.hasNextDouble()) { 
            double feet = scanner.nextDouble(); 
            double meter = feet * 0.3048; 
            System.out.printf("%.2f 英尺 = %.2f 米%n", feet, meter); 
        } else {
            System.out.println("输入无效，请输入数字。");
        }
        scanner.close();
    }
}